[issue38168] Refleaks in setint() of mmapmodule.c

[Xiang Zhang]

Change by Xiang Zhang <angwerzx at 126.com>:


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pull_requests: +15786
pull_request: https://github.com/python/cpython/pull/16176

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue38168>
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